Daily Roundup: August 19, 2010

Gas Power: A San Francisco-area landfill is turning its trash into liquid natural gas to fuel the landfill’s fleet of 350 garbage trucks. National Geographic

Tough Break-Up: A massive oil plume from the Gulf oil disaster is not breaking down easily, scientists revealed in a new report, suggesting the plume could threaten wildlife for months or years. New York Times

In Hot Water: A rise in sea temperatures has caused unusual, large-scale bleaching of Indonesian coral. ENN

Double Disaster: Rare “twin” earthquakes that hit minutes apart caused the 2009 South Pacific tsunami disaster, scientists discovered. Even rarer, the two massive quakes – both greater than 8.0 on the Richter scale – happened on two different fault lines. NPR

Sun Set: The Southern Arizona VA in Tucson, Arizona, plans to install a 2.9-megawatt solar-panel array on its carport, which will make it America's largest solar carport, and will supplying the hospital with the bulk of its electricity. Grist

--Sarah A. Henderson